Table 1.
Dragging lengths, numbers of Ixodes ricinus ticks caught and averaged tick densities (±SE based on 10 m2 subsections as replicates) at study sites in Helsinki
| Study site | Distance dragged (metres) | Adults | Nymphs | Larvae | Density/100 m2 ± SE | ||
|---|---|---|---|---|---|---|---|
| Adults | Nymphs | Larvae | |||||
| Hakuninmaa | 4,100 | 32 | 111 | 55 | 0.8 ± 0.1 | 2.7 ± 0.3 | 1.3 ± 1.2 |
| Lapinniemi | 3,850 | 26 | 82 | 59 | 0.7 ± 0.1 | 2.1 ± 0.3 | 1.5 ± 1.1 |
| Kumpula | 3,700 | 123 | 308 | 210 | 3.3 ± 0.4 | 8.3 ± 0.6 | 5.7 ± 1.4 |
| Laakso | 3,100 | 50 | 416 | 163 | 1.6 ± 0.2 | 13.4 ± 0.9 | 5.3 ± 0.9 |
| Lauttasaari | 4,000 | 23 | 170 | 96 | 0.6 ± 0.1 | 4.3 ± 0.5 | 2.4 ± 1.1 |
| Lehtisaari | 4,200 | 16 | 124 | 5 | 0.4 ± 0.1 | 3 ± 0.3 | 0.1 ± 0.1 |
| Meilahti | 4,200 | 86 | 141 | 26 | 2 ± 0.3 | 3.4 ± 0.3 | 0.6 ± 0.3 |
| Seurasaari | 4,000 | 37 | 37 | 2 | 0.9 ± 0.2 | 0.9 ± 0.2 | 0.1 ± 0.1 |
| Töölönlahti | 3,600 | 9 | 10 | 0 | 0.3 ± 0.1 | 0.3 ± 0.1 | 0 |
| TOTAL | 34,750 | 402 | 1,399 | 616 | 1.2 ± 0.1 | 4 ± 0.2 | 1.8 ± 0.3 |